Why does my power blink or flicker?

Momentary power interruptions, which often appear as brief flickering or blinking of lights, typically last less than a second to a few seconds. While short, these interruptions can impact electronic devices and appliances in homes and businesses.

Causes of Momentary Power Interruptions:

These flickers can happen anytime, even on clear, sunny days, and are caused by various factors, including:

  • Lightning strikes
  • Vegetation interference
  • Animals
  • Damaged electrical equipment

How Does the System Respond?

Our power lines are equipped with protective devices like breakers and reclosers. These devices can detect disruptions and momentarily shut off power to the affected line section. This quick action often allows the cause of the interference, like a tree branch touching the line, to clear itself. If the branch falls away or moves clear of the line, the power is swiftly restored, preventing prolonged outages. This process is crucial in avoiding damage and extended power outages.

Steps You Can Take:

To minimize the impact of these interruptions, consider:

  • Using surge protectors to safeguard your appliances and equipment.
  • Installing an Uninterruptible Power Supply (UPS) for sensitive or critical equipment like computer systems. A UPS provides emergency power during an outage.
  • Keeping a record of the exact dates and times of these occurrences, which can help us in identifying and addressing the issues more effectively.

Show All Answers

1. How do I read my electric meter?
2. Why does my power blink or flicker?